57 строки
1.6 KiB
TypeScript
57 строки
1.6 KiB
TypeScript
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import {Vector3, Vector} from 'vectors';
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/**
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* A simple 3x3 matrix structure.
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*
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* @export
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* @class Matrix3x3
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*/
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class Matrix {
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public M11 : number;
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public M12 : number;
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public M13 : number;
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public M21 : number;
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public M22 : number;
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public M23 : number;
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public M31 : number;
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public M32 : number;
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public M33 : number;
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/**
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* Gets a column as a new vector.
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*
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* @param {number} index The index of the column (0 .. 2).
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* @returns {Vector3} A vector representing the column.
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*/
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public getColumn_Breaks(index : number) : Vector3 {
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if (index == 0) {
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return new Vector3(this.M11, this.M21, this.M31);
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} else if (index == 1) {
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return new Vector3(this.M12, this.M22, this.M32);
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} else if (index == 2) {
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return new Vector3(this.M13, this.M23, this.M33);
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} else {
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throw new RangeError('Invalid matrix 3x3 column index: ' + index);
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}
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}
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/**
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* Gets a column as a new vector.
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*
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* @param {number} index The index of the column (0 .. 2).
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* @returns {Vector3} A vector representing the column.
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*/
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public getColumn_Works(index : number) : Vector {
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if (index == 0) {
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return new Vector(this.M11, this.M21, this.M31);
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} else if (index == 1) {
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return new Vector(this.M12, this.M22, this.M32);
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} else if (index == 2) {
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return new Vector(this.M13, this.M23, this.M33);
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} else {
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throw new RangeError('Invalid matrix 3x3 column index: ' + index);
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}
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}
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}
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